中(zhong)山(shan)(shan)(shan)公(gong)用(yong)水(shui)(shui)(shui)務(wu)有(you)(you)限公(gong)司(si)(si)（以下簡稱(cheng)：公(gong)司(si)(si)）前身是創建(jian)于(yu)1959年的石岐(qi)水(shui)(shui)(shui)廠，2008年隨母公(gong)司(si)(si)吸收(shou)合(he)并成(cheng)為(wei)(wei)中(zhong)山(shan)(shan)(shan)公(gong)用(yong)事業集團股份(fen)有(you)(you)限公(gong)司(si)(si)下屬全資子公(gong)司(si)(si)，公(gong)司(si)(si)名稱(cheng)于(yu)2017年6月由中(zhong)山(shan)(shan)(shan)市供水(shui)(shui)(shui)有(you)(you)限公(gong)司(si)(si)變更為(wei)(wei)中(zhong)山(shan)(shan)(shan)公(gong)用(yong)水(shui)(shui)(shui)務(wu)有(you)(you)限公(gong)司(si)(si)。公(gong)司(si)(si)以城市供水(shui)(shui)(shui)和污水(shui)(shui)(shui)處理為(wei)(wei)主，涵蓋水(shui)(shui)(shui)質監測、工程設(she)計、施工安(an)裝(zhuang)、信息技術、水(shui)(shui)(shui)處理技術研發等相關業務(wu)。

城市(shi)供水：擁有(you)中山公(gong)用水務有(you)限公(gong)司(si)(si)等10家全資公(gong)司(si)(si)、7家參控股公(gong)司(si)(si)，建有(you)獲(huo)得國家實驗室認可的水質檢測中心(xin)，目(mu)前(qian)日供水能力達206萬m3，供水總(zong)量約(yue)占中山市(shi)的80%，供水管道長度達6500公(gong)里，服務群眾(zhong)約(yue)300萬人。

污(wu)(wu)(wu)水(shui)(shui)(shui)處(chu)(chu)(chu)理(li)及(ji)污(wu)(wu)(wu)水(shui)(shui)(shui)管網運(yun)營服(fu)務(wu)：擁有(you)中(zhong)(zhong)山(shan)(shan)市(shi)污(wu)(wu)(wu)水(shui)(shui)(shui)處(chu)(chu)(chu)理(li)有(you)限(xian)(xian)公(gong)司(si)等(deng)2家全(quan)資公(gong)司(si)，代運(yun)營中(zhong)(zhong)山(shan)(shan)公(gong)用黃圃污(wu)(wu)(wu)水(shui)(shui)(shui)處(chu)(chu)(chu)理(li)有(you)限(xian)(xian)公(gong)司(si)，委托運(yun)管民眾(zhong)污(wu)(wu)(wu)水(shui)(shui)(shui)處(chu)(chu)(chu)理(li)廠等(deng)5家污(wu)(wu)(wu)水(shui)(shui)(shui)處(chu)(chu)(chu)理(li)廠，目前日(ri)污(wu)(wu)(wu)水(shui)(shui)(shui)處(chu)(chu)(chu)理(li)能力達(da)47萬(wan)m3，污(wu)(wu)(wu)水(shui)(shui)(shui)處(chu)(chu)(chu)理(li)總量約占中(zhong)(zhong)山(shan)(shan)市(shi)的35%以上；2018年(nian)9月(yue)，中(zhong)(zhong)山(shan)(shan)公(gong)用組建水(shui)(shui)(shui)環境治(zhi)理(li)有(you)限(xian)(xian)公(gong)司(si)，承接中(zhong)(zhong)心城區污(wu)(wu)(wu)水(shui)(shui)(shui)管網、泵(beng)站(zhan)(zhan)運(yun)營服(fu)務(wu)（約836公(gong)里管網及(ji)18座泵(beng)站(zhan)(zhan)）。